Solve Motion Position Homework: Answer at 6 sec - 10/46 m

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missashley
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Homework Statement



Consider the plot below describing motion along a straight line with an initial position of x = 10 m.

http://img261.imageshack.us/my.php?image=asdfdp5.jpg

What is the position at 6 seconds? Answer in m.

The position at 2 seconds is 17 m.

Homework Equations



delta d = 1/2a delta t^2 + Vi delta t


The Attempt at a Solution



I didn't know whether to use 4 or 0 as the final velocity.

delta d = 10 or 46
 

Discussion

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The problem is much simpler than it looks. Remember from calculus how velocity and displacement are related.

Hint: Remember that this may not necessarily be a constant acceleration problem.

Bryan